Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'explore' = '<SYSTEM32>\explore.exe'
Malicious functions:
Executes the following:
- '<SYSTEM32>\rundll32.exe' fldrclnr.dll,Wizard_RunDLL
- '%WINDIR%\explorer.exe'
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments] 'SaveZoneInformation' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Associations] 'LowRiskFileTypes' = '.zip;.rar;.nfo;.txt;.exe;.bat;.com;.cmd;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mpg;.mpeg;.mov;.mp3;.m3u;.wav;.scr;'
- [<HKCU>\Software\Microsoft\Internet Explorer\Download] 'CheckExeSignatures' = 'no'
- [<HKCU>\Software\Microsoft\Internet Explorer\Download] 'RunInvalidSignatures' = '00000001'
Modifies file system :
Creates the following files:
- <SYSTEM32>\explore.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'OleMainThreadWndClass' WindowName: ''
- ClassName: 'SysListView32' WindowName: ''
- ClassName: 'CSCHiddenWindow' WindowName: ''
- ClassName: 'SystemTray_Main' WindowName: ''
- ClassName: 'BaseBar' WindowName: 'ChanApp'
- ClassName: 'MS_WINHELP' WindowName: ''
- ClassName: 'TfrmI' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Proxy Desktop' WindowName: ''
